Special-purpose computer for electroholography in embedded systems

Electroholography is attracting attention as an ideal 3D image presentation method. Developing such methods involves significant computational complexity; thus, they are difficult to realize. Typically, large cluster systems with a control PC and a field-programmable gate array (FPGA) acceleration board are used to reduce hologram calculation time. However such systems cannot be used for embedded 3D systems, such as a head-mounted display. In this study, we developed a compact holographic computer using a Xilinx Zynq UltraScale + MPSoC with an ARM CPU and an FPGA on a single chip. The proposed system can reproduce a 3D video at 15 frames per second for a spatial light modulator of 1,920 x 1,080 pixels from an object represented by 6,500 point cloud sources. The proposed system can be embedded in various systems, e.g., head-mounted displays and 3D televisions. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement